Mineralogical characteristics
Chiastolite is an opaque variety of andalusite that displays a twinned form. Andalusite is characterized by a carbonaceous cross-shaped inclusion, which can be seen when cut transversely. This cross-shaped part is due to the encrustation of impurities around the crystals as they grow.
It usually appears in metamorphic rocks and rarely in granites and granitic pegmatites. The name chiastolite comes from the Greek "chiastos", meaning "cross".
Deposits
Russia, Chile, Spain and United States.
Therapeutic properties
Chiastolite is considered a stone of courage and transmutation. In ancient times it was used as protection against curses. It is often used to face changes and helps move through them in order to achieve harmony. Chiastolite supports problem-solving and encourages realistic vision. It helps calm fears and recover self-esteem.